Opa1612 vs opa1642 sound quality audiophile. THD+Noise vs Frequency 3 Description The OPA134, OPA2134, and OPA4134 (OPAx134) series are ultra-low distortion, low-noise operational amplifiers fully specified for audio applications. For many audiophile’s systems, especially those that employ older tube electronics, hum or noise is a constant companion with the music. Download. One good example is XU09 portable headphone amplifier. . r/audiophile is a subreddit for the pursuit of quality audio reproduction of all forms, budgets, and sizes of speakers. The current noise paired with high source impedance translates into additional voltage noise on the input and this gets amplified by the gain in the design. Features include 5. Feb 11, 2021 · Even AD797 or OP627 cant hold a candle vs OPA1612 in terms of SQ - the difference is HUGE! My preamp sounds best with OPA1612 for gain and OPA2192 as buffer. com In no case did I have too high expectations regarding the sound • audio·phile: a person with love for, affinity towards or obsession with high-quality playback of sound and music. who builds large PA speaker systems. 5nV/√ Hz noise density with an ultralow distortion of 0. Close to zero DC mv at its output would enable removal of the dreaded electrolytic coupling caps which will definitely lower colouration and improve sound quality. 8 mA per channel. Manufacturer: Texas Instruments. 00 : Crosstalk - 110dB PSRR - 80dB min, typ 100dB Distortion - 0. Oct 11, 2022 · Sound. Mar 9, 2023 · SMSL SU-10 vs M500 MKIII vs DO300 21 vs 9 vs 11 dual op-amps OPA1612 (accoring to the spec from smsl-audio) What is the Op-amps doing in that? M500 SINAD is higher than DO300 with less op-amps. And this preamp sounds MUCH better than Audio Research, Burmester and Accuphase preamps costing above €10. Yageo FCR CF: Articulated and lively bass - maybe a tad too much and not the tightest, highs The OPA1602 and OPA1604 bipolar-input operational amplifiers achieve very low 2. Sep 14, 2021 · Preamplifier Input Parallel Resistor (22k) Shootout: 1. The OPA1612 offers rail-to-rail output swing to within 600 mV with a 2 kΩ load, which increases headroom and maximizes dynamic range. Before any modifications I use shematics to see what i need to choose between these four Op-Amps. Both fet based opamps sounds a little bit more solid in the bass (not quantity but the imaging and the texture). During my many years of attending audio shows and visiting dealers and manufacturers, all too often I’ve entered a listening room and the first thing I heard was hum coming from somewhere in the system. Page: 21 Pages. OPA2134 is basic hi quality Op-Amp and all rounder Op-Amp with great sound. These sound great and outshine many of the other modern high performance audio opamps out there today. From what I know the OPA1656 is currently the highest-spec audio grade standard opamp that TI offers. info/wireless-world Feb 11, 2021 · According to the TI datasheets OPA1612 has less noise than OPA1656. MUSES8820 is the best, IMHO. Sorry. IOW, there is no opamp swap fix for a bad layout. Feb 11, 2021 · The next op-amp I am planning to try is the OPA1612 but perhaps the DAC is the limiting factor and perhaps the measurements will look very similar to the OPA2134 even if the OPA1612 is a really good op-amp. info/wireless-world Apr 25, 2024 · The OPA1642 has much lower current noise and better 1/f noise than the OPA1656. 1-nV/√ Hz noise, low THD+N (0. May 23, 2018 · The first time I did test with opa1642 opa2156 (precision opamp version of opa1656) opa1612. 1 nV/√Hz noise density with an ultra-low distortion of 0. 1-nV/√ Hz noise density with an ultralow distortion of 0. Dec 6, 2018 · Decent quality audio amplifiers all sound the same anyway, as long as they're not driven towards the point of clipping. This is a straight-to-the-point review, so don’t expect a long, detailed review on the sound quality. Therefore distortion and or noise tend to be higher than for OPA1612. But that does not say anything about the SQ. tnt-audio. A true FET input stage is incorporated to provide excellent sound quality and speed for exceptional audio performance. The OPA1611 (single) and OPA1612 (dual) bipolar-input operational amplifiers achieve very low 1. Jun 19, 2021 · The OPA1642 has more open at the high frequency, it is more detail but it noticeable sharp and edgy sound. One S300iu integrated amplifier | Stereophile. OPA1612 is open sounding but is a little warmer possibly because of the lower midrange roundness. In terms of audio quality, both FLAC and WAV are capable of delivering identical, lossless audio. ) He talked to me about OPA1611's versus OPA134's as well as the OPA1612's versus OPA2134's. May 3, 2023 · Focusing on a practical, hands-on perspective, George Ntanavaras, details the design and construction of a phono preamplifier for Moving Magnet (MM) cartridges and a Line/Headphone amplifier with two additional inputs and volume control. Jun 12, 2024 · We weigh factors like sound quality, build quality, comfort for extended listening sessions, and the headphones’ ability to connect with various audio sources. The Tonewinner AD-1PRE+ is a versatilepreamplifier that offers a number of interesting features. Can anybody please suggest some drop in replacements chips? I do little/no audio electronics so don't know what's good in this regard other than matching up the specs. What else, maybe cleaner more resolved sound at congested parts. 000015% at 1kHz. 1 nV/√Hz at 1 kHz • Ultralow Distortion: 0. This means that, theoretically, there is no difference in audio quality between the two formats. For high source impedance sensors such as a phono cartridge lower current noise is better. Jul 30, 2021 · If I could also request test of: OPA1642 ~ 2 Euro OPA1656 ~ 2. (NOTE: We once owned a recording studio together back in the late 1970's through the early 1980's. So far I don't hear any harsh sibilants (very clean) but it is virtue of my speakers. Only really better substitution for NJM4580 for example as Pre-Amp can be no less then OPA2228 or even better OPA1612, but for that -3dB less noise (and distortion) over whole audio spectrum you will have to play premium extra. Over 40 years ago a double blind test was done on three amplifier designs: one thermionic and two solid state, with golden eared audiophiles and they couldn't tell the difference! http://www. com The OPA1611 (single) and OPA1612 (dual) bipolar-1• Superior Sound Quality input operational amplifiers achieve very low • Ultralow Noise: 1. Sam, Kai, I realize looking back at my answer above that I worded it a little poorly. Opa1642 sounds a bit smoother and silky at top end but a little bit fat in the mids. 1 nV/√ Hz at 1 kHz; Ultralow Distortion: 0. info/wireless-world Superior Sound Quality; True JFET Input Operational Amplifier With Low Input Bias Current; Low Noise: 5. Tested a lot of OP, including LME49720, OPA1612, OPA1642, MUSES8920 and MUSES8820. group at Texas Instruments. The OPA1611 and OPA1612 The TI OPA1612 dual operational amplifier benefits from excellent technical characteristics, allowing very good electrical and audio performance. OPA1641, OPA1642, OPA1644 SBOS484D –DECEMBER 2009–REVISED APRIL 2016 OPA164x SoundPlus™ High-Performance, JFET-Input Audio Operational Amplifiers 1 1 Features 1• Superior Sound Quality • True JFET Input Operational Amplifier With Low Input Bias Current • Low Noise: 5. amp. Feb 28, 2021 · The new breed of TI J-Fet opamps offer superior performance to that old soldier the OPA2134. The OPA827 for example has superior load drive,much lower distortion and miniscule DC offset. Oct 15, 2014 · Texas Instruments' OPA1612 (dual) bipolar-input operational amplifier achieves very low 1. 1-nV/√Hz noise density with an ultralow distortion of • Ultralow Distortion: 0. 1 nV/√Hz at 1 kHz 1. In fact, it incorporates quality components such as an ES9038 DAC chip combined with two optical inputs, a CT7601PR USB interface, as well as a combination of no less than 9 AOPs (5x OPA1612, 4x OPA1632, 1x OPA1642) and a MUSES72323 volume controller. Feb 4, 2014 · Ti and others do have interest to make them at the same level as its primary production line of OPA class IC-s. I also have been an audio enthusiast for quite a while, having tinkered or created several guitar effects/amps. keith-snook. Mar 14, 2010 · Overall balance with new amp is a little darker but with better transients. When a WAV file is compressed to FLAC and then decompressed, the resulting audio is bit-for-bit identical to the original WAV file. These three Op-Amps sounds great. 00005% at 1 kHz Jan 10, 2016 · I talked yesterday to my buddy Greg B. Description: High-Performance, JFET-Input AUDIO OPERATIONAL AMPLIFIERS. I have a Technics MASH cd player with the SMDs type of opamps needed. however I cannot source an OPA164x at the moment, seems to be some kind of shortage. ••• Mar 17, 2019 · Hi everyone - wanted to take the opportunity on this thread to introduce myself, I am the engineer that is assuming John's old role as Audio systems engineer in the precision op. 00003% at 1kHz. I love details clarity, soundstage - listen to rock classical and vocals. 000. TI’s OPA1662 is a Dual SoundPlus™ low noise (3. This feature, in combination OP Amp Rolling: the Philips CD753 (aka Marantz CD5000) with MUSES8820 vs OPA1692 vs LME49723 and Others - an article by Paul Hunting on TNT-Audio, Internet HiFi magazine, www. The OPA1602 and OPA1604 series of op amps offer rail-to-rail output swing to within 600mV with 2kΩ load, which increases headroom and maximizes dynamic range. The Tonewinner AD-1PRE+ is a versatile pre-amplifier that offers a number of interesting features. This is based on my experience with the V5i-D. The OPA1611 and OPA1612 offer rail-to-rail output swing to within 600 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. 000015% at 1 kHz. 2. Our primary goal is insightful discussion of home audio equipment, sources, music, and concepts. May 3, 2022 · I've seen people use OPA1642/1644 a replacements for the NJM4580s and TL074s on these amps. OPA1656 tends to have thin bass in comparison to OPA1612. The OPA1642 is “one step down” but still very highly rated, and it is JFET-input which should give a low enough DC-offset to be used directly in this kind of application. 00005% at 1 kHz Mar 22, 2022 · OPA1612 (soic on dil adapter board), bi-polar from input to output, again a very good opamp, which to me "sounds more balanced" top to bottom than the LME, it is just as dynamic, but just a little less obvious in the bass leading edge because the mid-range seems a little more fleshed out rich and full bodied, highs are just as good as the LME. I don't care about listening tests or something else, just want to use the technical better one in my amp. Find parameters, ordering and quality information We would like to show you a description here but the site won’t allow us. Find parameters, ordering and quality information Jun 7, 2016 · Sound Quality Disclaimer: 1. Part #: OPA1642. Our selection process also takes into account user feedback, industry standards, and innovations in audio technology to compile a list that caters to a wide range of audiophile needs. Feb 17, 2023 · Also, most opamps can't handle the RF coming out of dac outputs. File Size: 764Kbytes. In this case, because of the way the circuit is designed, the voltage and current noise of the op amp itself effectively appear inside the feedback loop, and so should be corrected for by the op amp's loop gain itself (at least until the op amp runs out of loop gain at high frequency). 5 Euro OP275 ~ 3 Euro OPA1612 ~ 6 Euro According to specs I would think the OPA1642 would be one of the best compromises cost vs performance wise. I did not get paid for saying something good or bad. May 15, 2022 · Buggle2 Riaa board. All the amplification stages are based on top-quality audio op-amps such as Texas Instruments' OPA1642 for the phono stage and OPA1612 for the Line Feb 11, 2021 · According to the TI datasheets OPA1612 has less noise than OPA1656. I too find that the OPA1612 and OPA1642 are fantastic upgrade/replacements in a whole lot of professional and consumer audio gear out there equipped with comparatively outdated opamps. The OPA1611 and OPA1612 Jul 25, 2016 · Hello all My Marantz and most of my CD players have the LM4562 which I find is great. When I do serious listening test between them, just an A - B testing, not back and forth, I found the OPA1642 creates more noise at upper frequency because of those high frequency details. I got free shipping with Element14 till 29th of this month Mar 7, 2019 · Sometime I use OPA1612, OPA1642 and OPA1622. 1nV/√Hz Noise, Low THD and Precision. TE CFS CF: Good soundstage, neutral mids, punchy basslines, overall detailed & open, superb vocal rendering, smooth highs, totally glare free. It ensures a very low noise density of 1. Apr 5, 2021 · The original amp has the OPA1656 and the other has the OPA1642. It appears that the The OPA1641, OPA1642, and OPA1644 rail-to-rail output swing allows increased headroom, making these devices ideal for use in any audio circuit. 00005%), a low input bias current of 2 pA, and low quiescent current of 1. OPA1612 sounds better than any transistor preamp I've ever heard and better then my own 6N6P 2 case -no barrels hold- 36kg monster preamp with a 100% double blind test win rate. Aug 16, 2024 · Audio Quality. 3nV/rtHz) and distortion (-124dB), wide bandwidth (22MHz) audio op amp. May 9, 2023 · Which of the two mentioned OP Amps (OPA1612 or OPA1656) is the better one, in a scientific point of view. The OPA1641 (single), OPA1642 (dual), and OPA1644 (quad) series are JFET-input, ultralow distortion, low-noise operational amplifiers fully specified for audio applications. 00005% at 1 kHz The OPA1641, OPA1642, and OPA1644 rail-to-rail output swing allows increased headroom, making these devices ideal for use in any audio circuit. Feb 11, 2021 · According to the TI datasheets OPA1612 has less noise than OPA1656. 004% @20KHz The above parameters are insignificant to the audio level variations imposed by substandard audio recordings, room modes and compromised loudspeaker placements in the average home, some of these variations could TI’s OPA1612 is a SoundPlus™ Audio Operational Amplifier with 1. The OPA1642 is also theoretically the best choice for the unity and x2 stages in the output buffer, although the LME49720 is a very close second. You can try swapping opamps to find the least bad sound, that's about it. 1-nV/√Hz as well as an extremely low distortion level of 0. The OPA1611 (single) and OPA1612 (dual) bipolar-1• Superior Sound Quality input operational amplifiers achieve very low • Ultralow Noise: 1. Signal loss and filtering can occur if your cable offers a lot of electronic resistance, and particularly when that resistance changes with frequency (impedance). 00005% at 1 kHz Aug 3, 2019 · The OPA1642 is the best choice that you can make other than incredibly expensive ones that provide very, very, slightly less noise and higher distortion. Feb 11, 2021 · looks very similar to the eighth image from post #2 of Bel Canto's S300i/S300iu - driven by dual mono Icepower amplifier modules with switch mode power supply - go to Inside the Bel Canto S300i integrated amplifier | Audiokarma Home Audio Stereo Discussion Forums and Bel Canto e. Everything that I wrote here are “IMHO” and as is. May 6, 2022 · Lets take a look at the NE5532 op-amp, used in audio products everywhere since 1979 and it costs about a $1. Jul 18, 2024 · Low impedance is the key factor of a good quality audio cable, particularly when it comes to speakers and low-impedance headphones. bsovzubxifsfxliyedrtwhtwbrfyeixwamhyqvcqgom
